Apache HTTP Server Version 2.0
Apache HTTP Server Version 2.0
| Description: | Compress content before it is delivered to the client |
|---|---|
| Status: | Extension |
| Module Identifier: | deflate_module |
| Source File: | mod_deflate.c |
The mod_deflate module provides
the DEFLATE output filter that allows output from
your server to be compressed before being sent to the client over
the network.
Enabling Compression
Compression is implemented by the DEFLATE
filter. The following directive
will enable compression for documents in the container where it
is placed:
Most popular browsers can not handle compression of all content so you may want to set the 'gzip-only-text/html' note to 1 to only allow html files to be compressed (see below).
If you set this to anything but '1' it will be ignored, so you can do negative matches.
SetEnv gzip-only-text/html 1
SetOutputFilter DEFLATE
Here is an example of enabling compression for the Apache documentation:
<Directory "/your-server-root/manual">
SetEnv gzip-only-text/html 1
SetOutputFilter DEFLATE
</Directory>
| Description: | Fragment size to be compressed at one time by zlib |
|---|---|
| Syntax: | DeflateBufferSize value |
| Default: | DeflateBufferSize 8096 |
| Context: | server config, virtual host |
| Status: | Extension |
| Module: | mod_deflate |
The DeflateBufferSize directive specifies
the size in bytes of the fragments that zlib should compress at one
time.
| Description: | Places the compression ratio in a note for logging |
|---|---|
| Syntax: | DeflateFilterNote notename |
| Context: | server config, virtual host |
| Status: | Extension |
| Module: | mod_deflate |
The DeflateFilterNote directive
specifies that a note about compression ratios should be attached
to the request. The name of the note is the value specified for
the directive.
| Description: | How much memory should be used by zlib for compression |
|---|---|
| Syntax: | DeflateMemLevel value |
| Default: | DeflateMemLevel 9 |
| Context: | server config, virtual host |
| Status: | Extension |
| Module: | mod_deflate |
The DeflateMemLevel directive specifies
how much memory should be used by zlib for compression
(a value between 1 and 9).
| Description: | Zlib compression window size |
|---|---|
| Syntax: | DeflateWindowSize value |
| Default: | DeflateWindowSize 15 |
| Context: | server config, virtual host |
| Status: | Extension |
| Module: | mod_deflate |
The DeflateWindowSize directive specifies the
zlib compression window size (a value between 1 and 15).